Eeytfolds i



45 Y against the cap they will have performed their UNITED STATES" `REYNOLDS i. OOWDEN, or Lnnronm, OHIO,

OHARLEs N; sOHMIOK, or SAME PLAGE.

,PlrrnNrA Ormes.

PAVING-BLOCK."

sPEOiPIcATIoN forming pari of Letters Patent No.V 381.341. dared Aprilia Vieee.

Application niet Aprnes, rast.

To aZZ whom itk may concern.-

Beit known thatI, REYNOLDS I. OOW'DEN, s

ing one or more anchors attached, with a backing of furnace-slag or other suitable material appliedl inv a molten or plastics'tate and allowed to harden, the object being to provide a superior paving-block ata reduced initial cost.v l f v In the accompanying drawings, Figure '1` isl a view in perspective of my improved pavfV ing-block. Figs. 2 and 3 are views in per-` spective showing in inverted position the caps and different arrangement of anchors suitable in carrying out -mylinventiolr v A represents ,a metal cap, usually of castiron on account of thecheapness of this mate- .rial, the same having onthe faceor upper side thereof grooves ,a or suitable 'depressions or projections to form a suitable rough surface to prevent the pav'ing from being too' slippery, and on its lower face, at its outer the cap A, and to save expense such anchors, if of wrought metal, should be castinJ There .is 'no essential form or arrangement for such n anchors, and it may be found necessary to vary the number vand form thereof, according to the material used for backing, and so long as the anchors are made to hold vthe backing firmly funetionsregardless of arrangement thereof.

In Figs. 2 and 3 anchors B consist of rods bent in the form ofbai1s,with the ends thereof number, size, form, or

Serial No. 235,78` (No model.)v

cast` in vthe respective capa-.With bosses a forming a part of the cap to give more depth of metal, and consequently a stronger hold of the cap on the anchor. anchor,A, cast integral with the cap.y The anchors shown are well adapted to lthe pur`- pose, but are probably no better than various other forms orarrangements that might be de,

. The backing Q is preferably of furnace-slag on account of the cheapness and of the superior qualities of this material for the purpose.

In makingthis pavingblock whereslag is l, I i

AssrGNoa or ONE-HALF To In Fig. Sis shown an used for a backing molds ofl the proper formv Y are made in the sand and the caps, with'anchmolds and in the inverted position shownin to have a market value,unless it be ofthe negativekind, as it more frequently costs something l to have the slagcarted off or disposed of in some Way, and yet this slag has superi-ur lqualitiesfor such backing, being hard,indestructible," and sufficiently tenacious for lthe purpose. Such paving-blocks would of course be made almost as Vcheap per pound as pig-.irom and where the slag as drawn from the furnace can be run into pools77 madein the sand,where 65 `ors attached, `are placed, respectively, in suchy at a blast-furnace,wherethe cap could bemade i it could'be keptina molten state until it 'could be 'ladledinto the molds. These pavingis desired, and the furnace-men 7 would not be likelyto object to any depth of block that might be ordered, as an increase in the depth l of the backing would only result in disposing, of an extra amount of worthless material, so far vas its value for any other purpose is con'- cerned. In the vicinity ofblast-furnaces, or

`blocks can'be made. of any form in plan that y y f90 in places'even hundreds of miles away, :where ,j

railroad facilities or other cheap transportap y tioncan be had,-I know. of no material that y' can compete with the furnace-slag for the purpose aforesaid. In'places where, from` the roo l What I claim isu bedded in the body or backing, substantially As a new article of manufacture, a. pavingas set forth. block consisting,essentially,of a body or back- In testimony whereof I sign this specificaing and metal cap or head, the latter having tion, in the presence of two witnesses, this 8th 5 a projecting rim or rib on the outer edge of its day of April, 1887.

inner or lower face adapted to overlap the ad- .jacent edges of the body of backing,and anchors REYNOLDS I' COWDEN' consisting, essentially, ofthe rods bent into loop Witnesses: e form and rigidly secured at their end to said JOHN I. MOMILLAN, 1o inner or lower face of the cap or head and enl- J. S. GREENAMYER. 

